Update app.py

app.py

@@ -255,7 +255,7 @@ with gr.Blocks(css=css) as demo:
     with gr.Column(elem_id="col-container"):
         gr.Markdown("""
         <div id="logo-title">
-            <img src="https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-Image/qwen_image_logo.png" alt="Qwen-Image Logo">
+            <img src="https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-Image/qwen_image_logo.png" alt="Qwen-Image Logo" width="400" style="display: block; margin: 0 auto;">
             <h2>Fast</h2>
         </div>
         """)
@@ -296,15 +296,15 @@ with gr.Blocks(css=css) as demo:
                     minimum=1.0,
                     maximum=5.0,
                     step=0.1,
-                    value=1.0, # Default for the fast model
+                    value=1.0, 
                 )
 
                 num_inference_steps = gr.Slider(
                     label="Number of inference steps",
                     minimum=4,
-                    maximum=20,
+                    maximum=28,
                     step=1,
-                    value=8, # Default for the fast model
+                    value=8,
                 )
 
         gr.Examples(examples=examples, inputs=[prompt], outputs=[result, seed], fn=infer, cache_examples=False)